PyLawful 0.1.1

Allow activating SNMP-based LI on routers.

PyLawful is a small tool converting user inputs into SNMP messages to activate and manage Lawful Intercept Mediation Device and Tap configuration in routers.

The implementation is well proven to work against Cisco IOS-XR routers. It may also work against Cisco IOS, IOS-XE routers or even other vendors. (MIB implementation may vary.)

PyLawful integrates the pysnmp package to build and parse SNMP messages.

The tool allows:

• Setting the Target router IP address

• Setting the SNMPv3 credentials

• Walk the ciscoTap2MIB and ciscoIpTapMIB MIBs

• Configure LI MD + v4 Tap

• Configure Li MD + v6 Tap

• List configured Taps

• Remove MD+Taps

• Check cTap2StreamInterceptedPackets stats for configured Taps

PyLawful

1. Install PyLawful from PyPI:

   If your default Python installation is v3.x

   $ pip install PyLawful

   If your default Python installation is v2.x

   $ pip3 install PyLawful

2. Running PyLawful:

   Start the python code to enter the menu

   $ python3 PyLawful

3. Example:

   python PyLawful.py
   
   ####################################################
   
   Target router: 0.0.0.0
   
   Select operation:
   1. Set target router
   2. Set SNMP Security
   3. Walk LI MIBs
   4. Add new IPv4 LI TAP
   5. Add new IPv6 LI TAP
   6. Remove LI TAP
   7. Show CCCid's
   8. Show Intercept Counters
   0. Exit